% Copyright 2020 Makani Technologies LLC
%
% Licensed under the Apache License, Version 2.0 (the "License");
% you may not use this file except in compliance with the License.
% You may obtain a copy of the License at
%
%      http://www.apache.org/licenses/LICENSE-2.0
%
% Unless required by applicable law or agreed to in writing, software
% distributed under the License is distributed on an "AS IS" BASIS,
% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
% See the License for the specific language governing permissions and
% limitations under the License.

function [ybar, ii] = moving_avg(y, samples)
shift = ceil(samples / 2);
n = size(y, 1);
m = size(y, 2);
ybar = filter(ones(samples, 1) / samples, 1, y);
ybar = [ybar(shift:end, :); zeros(shift - 1, m)];
ybar(1:shift, :) = 0;
ii = (shift + 1):(n - shift);
